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2025-01-29
05:07
Are Parton Showers Inside a Quark-Gluon Plasma Strongly Coupled? A Theorist's Test / Arnold, Peter (Virginia U.) ; Elgedawy, Omar (Virginia U. ; South China Normal U. ; Cape Town U., Dept. Math. ; Guangzhou U.) ; Iqbal, Shahin (Quaid-i-Azam U. ; CERN)
We study whether in-medium showers of high-energy quarks and gluons can be treated as a sequence of individual splitting processes or whether there is significant quantum overlap between where one splitting ends and the next begins. Accounting for the Landau-Pomeranchuk-Migdal (LPM) effect, we calculate such overlap effects to leading order in high-energy $\alpha_s(\mu)$ for the simplest theoretical situation. [...]
arXiv:2501.15115; CERN-TH-2024-163.- 2024-12-17 - 7 p. - Published in : PoS: ICHEP2024 (2025) , pp. 582 Fulltext: 2501.15115 - PDF; document - PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024, pp.582

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2025-01-28
04:18
Precise Predictions for Event Shapes in Diphoton Production at the LHC / Buccioni, Federico (Munich, Tech. U.) ; Chen, Xuan (Shandong U.) ; Feng, Wei-Jie (Zurich U.) ; Gehrmann, Thomas (Zurich U.) ; Huss, Alexander (King's Coll. London ; CERN) ; Marcoli, Matteo (Durham U., IPPP)
Photon pair production is an important benchmark process at the LHC, entering Higgs boson studies and new physics searches. [...]
CERN-TH-2025-018 ; IPPP/25/03 ; TUM-HEP-1553/25 ; ZU-TH 05/25 ; arXiv:2501.14021.
- 6.
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2025-01-25
04:12
Fast interpolation grids for the Drell-Yan process / Cruz-Martinez, Juan (CERN) ; Huss, Alexander (CERN) ; Schwan, Christopher (Wurzburg U.)
Modern analyses of experimental data from hadron colliders rely on theory predictions at high orders in perturbation theory and a variety of input settings. [...]
CERN-TH-2025-013 ; arXiv:2501.13167.
- 9.
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2025-01-24
04:57
Energy-Energy Correlator for jet production in $pp$ and $pA$ collisions / Barata, João (CERN) ; Kang, Zhong-Bo (UCLA ; SUNY, Stony Brook) ; Mayo López, Xoán (Santiago de Compostela U., IGFAE) ; Penttala, Jani (UCLA)
In this Letter, we study the collinear limit of the Energy-Energy Correlator (EEC) in single-inclusive jet production in proton-proton ($pp$) and proton-nucleus ($pA$) collisions. [...]
CERN-TH-2024-201 ; arXiv:2411.11782.
- 7.
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2025-01-24
04:57
Testing the Froggatt-Nielsen Mechanism with Lepton Violation / Cornella, Claudia (CERN) ; Curtin, David (Toronto U.) ; Krnjaic, Gordan (Fermilab ; Chicago U., Astron. Astrophys. Ctr. ; Chicago U., KICP) ; Mellors, Micah (Toronto U.)
The Froggatt-Nielsen (FN) mechanism offers an elegant explanation for the observed masses and mixings of Standard Model fermions. [...]
FERMILAB-PUB-25-0010-T ; CERN-TH-2024-215 ; arXiv:2501.00629.
- 6.
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2025-01-24
04:56
On the Fate of Stringy Non-Invertible Symmetries / Heckman, Jonathan J. ; McNamara, Jacob ; Montero, Miguel ; Sharon, Adar ; Vafa, Cumrun ; Valenzuela, Irene (CERN)
Non-invertible symmetries in quantum field theory (QFT) generalize the familiar product rule of groups to a more general fusion rule. [...]
arXiv:2402.00118 ; CERN-TH-2024-019.
- 56.
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2025-01-24
04:53
Reconstructing Primordial Curvature Perturbations via Scalar-Induced Gravitational Waves with LISA / LISA Cosmology Working Group Collaboration
Many early universe scenarios predict an enhancement of scalar perturbations at scales currently unconstrained by cosmological probes. [...]
CERN-TH-2024-217 ; arXiv:2501.11320.
- 95.
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2025-01-24
04:48
Matrix models for extremal and integrated correlators of higher rank / Grassi, Alba (U. Geneva (main)) ; Iossa, Cristoforo (CERN)
We study extremal and integrated correlators of half-BPS operators in four-dimensional $\mathcal{N}=2$ SQCD and $\mathcal{N}=4$ SYM with $SU(3)$ gauge group. [...]
CERN-TH-2024-134 ; arXiv:2408.07391.
- 62.
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2025-01-23
04:15
Challenges and Opportunities of Gravitational Wave Searches above 10 kHz / Aggarwal, Nancy (Northwestern U.) ; Aguiar, Odylio D. (Sao Jose, INPE) ; Blas, Diego (Barcelona, IFAE ; ICREA, Barcelona) ; Bauswein, Andreas (Darmstadt, GSI) ; Cella, Giancarlo (INFN, Pisa) ; Clesse, Sebastian (Brussels U.) ; Cruise, Adrian Michael (Birmingham U.) ; Domcke, Valerie (CERN) ; Ellis, Sebastian (Geneva U.) ; Figueroa, Daniel G. (Valencia U., IFIC) et al.
The first direct measurement of gravitational waves by the LIGO and Virgo collaborations has opened up new avenues to explore our Universe. [...]
CERN-TH-2025-014 ; DESY-25-007 ; arXiv:2501.11723.
- 138.
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2025-01-21
04:14
Parton distributions confront LHC Run II data: a quantitative appraisal / Chiefa, Amedeo (Heriot-Watt U. (main) ; Maxwell Inst. Math. Sci., Edinburgh ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Costantini, Mark N. (Cambridge U., DAMTP) ; Cruz-Martinez, Juan (CERN) ; Nocera, Emanuele R. (Turin U. ; INFN, Turin) ; Rabemananjara, Tanjona R. (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Rojo, Juan (Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Sharma, Tanishq (Turin U. ; INFN, Turin ; Vrije U., Amsterdam ; NIKHEF, Amsterdam) ; Stegeman, Roy (Heriot-Watt U. (main) ; Maxwell Inst. Math. Sci., Edinburgh ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Ubiali, Maria (Cambridge U., DAMTP)
We present a systematic comparison of theoretical predictions and various high-precision experimental measurements, specifically of differential cross sections performed by the LHC run II for Drell-Yan gauge boson, top-quark pair, single-inclusive jet and di-jet production, and by HERA for single-inclusive jet and di-jet production. [...]
Nikhef 2025-002 ; Edinburgh 2024/10 ; CERN-TH-2024-16 ; CERN-TH-2024-169 ; arXiv:2501.10359.
- 51.
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